“Very important to have”
I am glad I discovered the repair manual for the 8000 Series Gravely Tractors. I own Gravelys,however, they are much older than this. They are the two wheeled L based models.These 8000 Series do not use the traditional Gravely Drive Train like the 424 and the 430 did. The older Gravely used a two speed planetary transmission with a planetary forward and reverse. The swift a matic had a two speed differential. The 8000 Series used a shuttle transmission. Like the 424 and the 430 the engine was in the rear. There were four speeds forward and reverse. Gravely Dealers experienced problems with the shuttle transmission. I know of one dealer who quit Gravely because of different problems he was having with Gravely Products as a whole,basically shoddy workmanship.